172.9 MALIG MELANOMA SKIN NOS


Code Information

Diagnosis Code: 172.9

Short Description: Malig melanoma skin NOS

Long Description: Melanoma of skin, site unspecified

Code Classification:

  • Neoplasms (140–239)
    • Malignant neoplasm of bone, connective tissue, skin, and breast (170-176)
      • 172 Malignant melanoma of skin
        • 172.9 Malig melanoma skin NOS

Code Version: 2015 ICD-9-CM


References to Index of Diseases and Injuries

The code 172.9 has the following ICD-9-CM references to the Index of Diseases and Injuries
  • Melanoma (malignant) (M8720/3) 172.9
    • abdominal wall 172.5
    • ala nasi 172.3
    • amelanotic (M8730/3) - see Melanoma, by site
    • ankle 172.7
    • anus, anal 154.3
      • canal 154.2
    • arm 172.6
    • auditory canal (external) 172.2
    • auricle (ear) 172.2
    • auricular canal (external) 172.2
    • axilla 172.5
    • axillary fold 172.5
    • back 172.5
    • balloon cell (M8722/3) - see Melanoma, by site
    • benign (M8720/0) - see Neoplasm, skin, benign
    • breast (female) (male) 172.5
    • brow 172.3
    • buttock 172.5
    • canthus (eye) 172.1
    • cheek (external) 172.3
    • chest wall 172.5
    • chin 172.3
    • choroid 190.6
    • conjunctiva 190.3
    • ear (external) 172.2
    • epithelioid cell (M8771/3) - see also Melanoma, by site
      • and spindle cell, mixed (M8775/3) - see Melanoma, by site
    • external meatus (ear) 172.2
    • eye 190.9
    • eyebrow 172.3
    • eyelid (lower) (upper) 172.1
    • face NEC 172.3
    • female genital organ (external) NEC 184.4
    • finger 172.6
    • flank 172.5
    • foot 172.7
    • forearm 172.6
    • forehead 172.3
    • foreskin 187.1
    • gluteal region 172.5
    • groin 172.5
    • hand 172.6
    • heel 172.7
    • helix 172.2
    • hip 172.7
    • in
      • giant pigmented nevus (M8761/3) - see Melanoma, by site
      • Hutchinson's melanotic freckle (M8742/3) - see Melanoma, by site
      • junctional nevus (M8740/3) - see Melanoma, by site
      • precancerous melanosis (M8741/3) - see Melanoma, by site
    • in situ - see Melanoma, by site
      • skin 172.9
    • interscapular region 172.5
    • iris 190.0
    • jaw 172.3
    • juvenile (M8770/0) - see Neoplasm, skin, benign
    • knee 172.7
    • labium
      • majus 184.1
      • minus 184.2
    • lacrimal gland 190.2
    • leg 172.7
    • lip (lower) (upper) 172.0
    • liver 197.7
    • lower limb NEC 172.7
    • male genital organ (external) NEC 187.9
    • meatus, acoustic (external) 172.2
    • meibomian gland 172.1
    • metastatic
      • of or from specified site - see Melanoma, by site
      • site not of skin - see Neoplasm, by site, malignant, secondary
      • to specified site - see Neoplasm, by site, malignant, secondary
      • unspecified site 172.9
    • nail 172.9
      • finger 172.6
      • toe 172.7
    • neck 172.4
    • nodular (M8721/3) - see Melanoma, by site
    • nose, external 172.3
    • orbit 190.1
    • penis 187.4
    • perianal skin 172.5
    • perineum 172.5
    • pinna 172.2
    • popliteal (fossa) (space) 172.7
    • prepuce 187.1
    • pubes 172.5
    • pudendum 184.4
    • retina 190.5
    • scalp 172.4
    • scrotum 187.7
    • septum nasal (skin) 172.3
    • shoulder 172.6
    • skin NEC 172.8
      • in situ 172.9
    • spindle cell (M8772/3) - see also Melanoma, by site
      • type A (M8773/3) 190.0
      • type B (M8774/3) 190.0
    • submammary fold 172.5
    • superficial spreading (M8743/3) - see Melanoma, by site
    • temple 172.3
    • thigh 172.7
    • toe 172.7
    • trunk NEC 172.5
    • umbilicus 172.5
    • upper limb NEC 172.6
    • vagina vault 184.0
    • vulva 184.4

Crosswalk Information

The code 172.9 converts into the following ICD-10 code(s):
ICD-9 Code ICD-10 Code ICD-10 Description
172.9 Right Arrow C43.9 Malignant melanoma of skin, unspecified
D03.9 Melanoma in situ, unspecified
This ICD-9 to ICD-10 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-9 Code ICD-9 Description
172.0 Malignant melanoma of skin of lip
172.1 Malignant melanoma of skin of eyelid, including canthus
172.2 Malignant melanoma of skin of ear and external auditory canal
172.3 Malignant melanoma of skin of other and unspecified parts of face
172.4 Malignant melanoma of skin of scalp and neck
172.5 Malignant melanoma of skin of trunk, except scrotum
172.6 Malignant melanoma of skin of upper limb, including shoulder
172.7 Malignant melanoma of skin of lower limb, including hip
172.8 Malignant melanoma of other specified sites of skin


This page was last updated on: 10/1/2014